Home / 9,609.12-14,349.60-9,117.09

Finding the Fourth Proportional to 9,609.12, 14,349.60 and 9,117.09

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Solution

The fourth proportional to 9,609.12, 14,349.60 and 9,117.09 is: 13,614.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,609.12 : 14,349.60 = 9,117.09 : x
  2. Step 2: Convert to fraction form
    9,609.12/14,349.60 = 9,117.09/x
  3. Step 3: Cross multiply
    9,609.12x = 14,349.60 × 9,117.09
  4. Step 4: Simplify right side
    9,609.12x = 130,826,594.66
  5. Step 5: Solve for x
    x = 130,826,594.66/9,609.12
  6. Step 6: Final answer
    x = 13,614.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.